If you’re a newbie in web development with Java, or when you’re looking for a basic example on how to do a data-driven web application with Glassfish V2 and NetBeans 6, this is where you'll find a great HOWTO.
Redsoft factory has released Liberator EJB3 Persistence 1. 1 and an open-source project called "Spring EJB3 DAOSupport" that allows immediate use of EJB3 .